Monday, January 28, 2013

Tech Disco 1/28/13

Synopsis:

Freezing rain will change over to rain later this afternoon as temperatures moderate at the beginning of this week. Another strong cold front will bring more snow showers and arctic air after Wednesday. A weak disturbance or clipper provides the state with a chance of more snow on Saturday, but temperatures moderate over the weekend and into the later part of the forecast period.

Short Term:

12Z Hi-res NAM forecasting mixed precipitation throughout this afternoon and changing over to rain around 20Z today. Scattered rain showers, especially along the ridges of central PA, will linger throughout the night and continue into Tuesday where the threat remains. 0Z MOS products bring temperatures near 60 degrees, but combination of fog in the morning and snow cover will keep temperatures closer to 50 degrees Tuesday and Wednesday.

Long Term:

Wednesday night approach of a front will bring more arctic air to PA.  Ahead of the front on Wednesday, winds could blow up to 25 knots. Post front, cold air rapidly arrives from the west and northwest over the lake and will bring moisture to much of the state Thursday and Friday. Uncertain, but a disturbance could affect the state, especially the higher terrain, on Saturday with models in agreement that temperatures hover around the freezing mark for the rest of the weekend and early next week.

Dillon Durinick

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